-There’s too much salt in the Chinese diet. ---So there is. The WHO says only 1.5 grams

问题补充：

---There’s too much salt in the Chinese diet.

---So there is. The WHO says only 1.5 grams of salt for each man every day.

A. is needed

B. needs

C. will need

D. has needed

答案：

(答案→)A. is needed

B. needs

C. will need

D. has needed

解析：本题考查被动语态。盐被需要，因此选A。